Harrow, drag, and pulverizer.



W. B. MITCHELL.

HARROW, DRAG, AND PULVERIZBR..

APPLIUATION FILED MILS, v1910.

Qy Paname@ Aim-15,1910.v

Witwe/osea Lf VIKLIFF B.

MITCHELL, OE' BEDFORD, NDANA.

HARK-JW', PULVEREZER.

Application filed January 3, 191e.

Specification of Letters Eatent.

Serial No. 535,993.

fo all whom "it may concern:

Be it known that l, lllicnmrr B. MiroiruLL, a citizen of the UnitedStates, residing at Bedford, in the county of Lawrence and State ofindiana, have invented a new and useful Harrow, Drag, and Pulverizer, ofwhichv the following is a specification.

rlhis invention has relation to a combined harrow, draO' and pulverizerand it consists in the novel construction and arrangement of partshereinafter shown and described.

rllhc object of the invention is to provide an implement of thecharacter stated which is of simple and durable structure and whichincludes a series of means secured together in close order and carryinga series of blades so mounted thatl they may be readily reversed intheir positions upon said cam. The beams are provided with inclinedunder surfaces and it is upon these surfaces that the said blades aremounted and all of the beams except the last beam of the series areprovided in their rear edges with slots or lterfs adapted to receive theforward end portions of the blades upon the next adjacent beam towardthe rear of the structure. The foremost beam of the series is preferablydevoid of the said blades. rlhe blades are formed from sheet metalhaving at their upper edges laterally disposed flanges, the flanges atthe rear ends of the blades eX- tending from the blades in the oppositedirection from the flanges at the forward ends thereof. The said flangesare disposed at right angles to the body portions of the blades.

ln the accompanying drawings: Figure i is a bottom plan view of theharrow, drag and pulverizer.` Fig. 2 is a side elevation of the same.Fig. 3 is a perspective view of one of the blades detached.

The implement includes a series of beams l arranged in close order andhaving lower inclined surfaces 2. rlhe said beams may be securedtogether by means of a bar or bars 3 or any other suitable means. All ofthe beams l except the rearmost beam of the series are provided at theirrear edges with vertically disposed slots or kerfs il.

0n all of the beams l except the foremost beam of the series are mountedblades 5. rihe said blades 5 are formed from sheet metal and consist ofplane body portions having at their upper edges laterally disposedflanges rEhe flanges G at the for ward ends of the blades 5 extend inthe opposite direction from the flanges t5 at the rear ends of the saidblades and all of vthe said flanges lie at right angles to the bodyportions of the blades. The flanges are provided with bolt perforations7 which are adapted to receive bolts S whereby the said blades aresecured in position against the under inclined sides or faces of thebeams l. The blades 5 may be positioned upon the beams l in any desiredrelative relation and it will be seen that when the rear ends of theblades (5 have become worn in consequence of use the said blades may bereverse-d in their positions by removing the securing devices S andturning the blades around and replaeing the said securing devices. r.theforward ends of the blades 5 are inserted in the slots or lterfs 1l ofthe beams lv just ahead of 'that beam upon which the blades are mountedand that the forward portions of the blades are braced against lateralstrain. 'lhe bolts S hold the blades against rearward movement ormovement away from the beams l. inasmuch as the blades are relativelylong and are in an inclined position as the harrow is drawn over thesurface of the ground they will cleave the soil effectually and cut anymaterial that may lie at the surface or just below the surface of thesame. 'ihe blades are securely held in place by three instrumentalitiesnamely, the two bolts, one located at each side of the blade and thekerfs or slots whichl receive the forward ends of the blades. By reasonof the fact that the blades are of such configuration that they may bereversed in their positions upon the beams when the rear ends of theblades, as first positioned, have become v-Vn 'to such an extent as tobe ineffective nnworn ends are disposed toward the .rear id theusefulness of the implement is prolong l.

Having thus described my invention, wh@ l claim as new and desire tosecure by Let.- ters Patent is:

it harrow composed of beams having inclined under surfaces, and providedat their rear edges with yerticnlry disposed slots, blades formed fromsheet netal and having laterally cisposed flanges at their upper edges,the flanges at the forward ends of the blades extending in the oppositedirection from the v[langes at the rear ends of the blades, securingdevices passing through said flanges and attaching the blades to theinclined surfaces of the beams, the blades upon one beam having theirforward end portions lying in the slots at the rear edge of the nextadjacent beam toward the front of the structure.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two Witnesses.

VICKLIFF B. MITCHELL.

IVitnesses:

WALTER Gr. OURUS, HoRATIo HARRYMAN.

